This has been led by another observation of janakj, thank you very much.
Added some code cleanup and seemingly missing code to restrict cookies.
And denote another recently fixed issue in changelog too, refs #9093.

The account details entry in admin panel seems to cause some confusion and
it's about time to grant access to these pages independently of the account
status anyway, regarding feedback I've got for this feature.

With trac.util.presentation.Paginator this as become another powerful tool
for review and administrativ cleanup making direct access to Trac db obsolete
at many more occasions then AcctMgr allowed before.